RAM Promaster 2015–2018 — technical service bulletin
Bulletin S2008000160 · NHTSA communication 10223929 · issued Oct 21, 2020
Technical service bulletin
communication type
Equipment
component
2015–2018
model years
4
vehicle entries
Official summary
No Start, DTC U0426-31 Minikrypt Error, Key Stuck
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.